While updating service references in the Web app in VS, error: An unexpected error occured on a send. An error occured while making the HTTP request - wcf

Question

There was an error downloading 'XYZmetadata'.The underlying connection was closed: An unexpected error occurred on a send.Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.An existing connection was forcibly closed by the remote host. Metadata contains a reference that cannot be resolved: 'XYZ'.
An error occurred while making the HTTP request to XYZ. This could be due to the fact that the server certificate is not configured properly with HTTP.SYS in the HTTPS case. This could also be caused by a mismatch of the security binding between the client and the server. The underlying connection was closed: An unexpected error occurred on a send.
Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. An existing connection was forcibly closed by the remote host If the service is defined in the current solution, try building the solution and adding the service reference again.
My VS code is written on one server, while the site runs on the IIS in a different server. Site is opening fine in the IIS server. But when the same link from IIS server is used as endpoint address in the web.config file of WebApp in different server, it gives above error while updating the service references. We are upgrading Visual studio from 2013 to 2019. Below is the log error for WCF service seen, when the code is run in the Visual studio(Local host)
<failedRequest url="http://localhost:4495/"
siteId="2"
appPoolId="Clr4IntegratedAppPool"
processId="10820"
verb="GET"
remoteUserName=""
userName=""
tokenUserName="NA\kur111545"
authenticationType="anonymous"
activityId="{00000000-0000-0000-2900-0080010000FE}"
failureReason="STATUS_CODE"
statusCode="401"
triggerStatusCode="401"
timeTaken="109"
xmlns:freb="http://schemas.microsoft.com/win/2006/06/iis/freb"
Below is the log error for WebApplication, when the code is run in the Visual studio(Local host):
<failedRequest url="http://localhost:4516/"
siteId="3"
appPoolId="Clr4IntegratedAppPool"
processId="11500"
verb="GET"
authenticationType="NOT_AVAILABLE" activityId="{00000000-0000-0000-0600-0080010000FF}"
failureReason="STATUS_CODE"
statusCode="303"
triggerStatusCode="303"
timeTaken="62"
xmlns:freb="http://schemas.microsoft.com/win/2006/06/iis/freb"
We are using Windows Authentication but, in the log files it shows anonymous authentication, even after disabling the Anonymous authentication in the IIS server. Ports 443 and 80 are enabled. And windows firewall is OFF in the server where the sites are hosted.
Below is the log data in the IIS server where the sites are running in a Remote server.
Log files for web Application in the IIS server:
//Software: Microsoft Internet Information Services 10.0
//Version: 1.0
//Date: 2022-08-23 01:09:01
//Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) cs(Referer) sc-status sc-substatus sc-win32-status time-taken
2022-08-23 01:09:01 10.8.138.25 OPTIONS * - 80 - 10.8.148.33 - - 404 6 0 339
Log files for WCF service in the IIS server:
//Software: Microsoft Internet Information Services 10.0
//Version: 1.0
//Date: 2022-08-23 01:09:01
//Fields: date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) cs(Referer) sc-status sc-substatus sc-win32-status time-taken
2022-08-23 01:09:01 10.8.138.25 OPTIONS * - 80 - 10.8.148.33 - - 404 6 0 339